08-02-2007, 03:48 AM
08-02-2007, 04:37 PM
Pretty scary, I used to drive over that bridge every so often.
08-02-2007, 04:42 PM
Was there just a week ago, could so easily have been us. So very sad to watch
08-02-2007, 05:20 PM
Very Scary indeed. We're just about to set off on our road trip to the grand canyon, wonder how many big bridges we'll cross and how safe they are o
08-02-2007, 05:33 PM
We're ok.... very scary though! I was downtown last night when it happend and all you could hear were sirens everywhere. I don't use that bridge to get to work but a lot of my co-workers do. I don't know anyone persnoally that was involved in it.
Melissa
Melissa
08-02-2007, 05:34 PM
ClemantineD @ Thu 02 Aug, 2007 5:33 pm Wrote:
We're ok.... very scary though! I was downtown last night when it happend and all you could hear were sirens everywhere. I don't use that bridge to get to work but a lot of my co-workers do. I don't know anyone persnoally that was involved in it.
Melissa
Melissa
Glad to hear you're OK. What are they speculating caused it?
08-02-2007, 05:44 PM
Glad everyone of you that way are safe.
Can you just see the finger pointing happening already. Guess they will blame the lowest guy on the food chain. Some poor labour that hit the bridge with a hammer.
seems that bridges going down seems to happen alot around here, either due to nature, accident or without reason.
Always thought you tended to build beyond tolerance levels not to tolerance levels.
Maybe things have changed, Any engineers here ??
Can you just see the finger pointing happening already. Guess they will blame the lowest guy on the food chain. Some poor labour that hit the bridge with a hammer.
seems that bridges going down seems to happen alot around here, either due to nature, accident or without reason.
Always thought you tended to build beyond tolerance levels not to tolerance levels.
Maybe things have changed, Any engineers here ??
08-02-2007, 06:15 PM
They dont have any answers yet as to cause, but as usual in national disasters of this magnitude the spin doctors are in top gear .
things like rating of 50 out of 120 does,nt mean it needs to be shut down everyubody else with bridges rated that low keep them opem .. IE ... its allright for us to endanger life on a worn out bridge cus everyone else does .... the idea here is to avoid law suits as much as possible ......
reminds me of the guy speeding having the excuse * its all right for me to do it cus everybody else does*
like was posted earlier some minion in a low payed job will get shafted and blamed ( one was drowned look for his name to appear in the list of suspects) , while the big boys get away scott free ....
things like rating of 50 out of 120 does,nt mean it needs to be shut down everyubody else with bridges rated that low keep them opem .. IE ... its allright for us to endanger life on a worn out bridge cus everyone else does .... the idea here is to avoid law suits as much as possible ......
reminds me of the guy speeding having the excuse * its all right for me to do it cus everybody else does*
like was posted earlier some minion in a low payed job will get shafted and blamed ( one was drowned look for his name to appear in the list of suspects) , while the big boys get away scott free ....
08-03-2007, 08:43 AM
At least 100 people killed in a train crash in the Congo the same day this happened. Didn't hear too much about that on CNN.
http//www.guardian.co.uk/congo/story/0,,2140769,00.html?gusrc=rss&feed=12
http//www.guardian.co.uk/congo/story/0,,2140769,00.html?gusrc=rss&feed=12
08-03-2007, 10:22 AM
Moo @ Fri 03 Aug, 2007 Wrote:
At least 100 people killed in a train crash in the Congo the same day this happened. Didn't hear too much about that on CNN.
http://www.guardian.co.uk/congo/story/0,...ss&feed=12
http://www.guardian.co.uk/congo/story/0,...ss&feed=12
CNN has this obsession with Stateside disasters. All other important news is ignored.
It must be frustrating for overseas CNN reporters.
The other unbelievable ongoing news item is the so called race for the next president. No wonder Americans are not interested in turning out to vote.
08-03-2007, 11:32 AM
marmitemaniac @ Thu 02 Aug, 2007 Wrote:
Was there just a week ago, could so easily have been us. So very sad to watch
If they are anything like the state of roads in California then I am amazed that this has not happened before now.
08-03-2007, 01:12 PM
Its very wierd here, I was on that bridge exactly 24 hours before it went out.
We all went through this initial panic, then an oddly calm realisation as we watched the news. Traffic here is bad enough, and that bridge was one of the main ways into town, so its going to get really bad here for a while.
We all went through this initial panic, then an oddly calm realisation as we watched the news. Traffic here is bad enough, and that bridge was one of the main ways into town, so its going to get really bad here for a while.
08-07-2007, 02:59 PM
I'm glad you guys weren't on the bridge.
Bridges, all structures, are built using the most applicable knowledge. However, engineers are human and cannot read the future. Many limitations become apparent only after the structure has been in use for a while, witness the Tacoma narrows bridge, where we learned about aerodynamic bridges.
http//www.history.com/media.do?id=mm_ed_bridges_broadband&action=clip
Similar lessons are learned as we go along. The collapsed bridge, a trussed bridge was one of many that took existing designs for shorter spans and made them longer and stronger to suit. Then, some fatigue showed up in the connections, it hadn't happened in the shorter spans, but it was examined and found to be within acceptable standards.
There is a problem with applying the common usage of the word, "deficiency" when reading engineering inspection reports. A piece of spalled concrete that makes no difference to the strength is still listed as a deficiency.[/url]
Bridges, all structures, are built using the most applicable knowledge. However, engineers are human and cannot read the future. Many limitations become apparent only after the structure has been in use for a while, witness the Tacoma narrows bridge, where we learned about aerodynamic bridges.
http//www.history.com/media.do?id=mm_ed_bridges_broadband&action=clip
Similar lessons are learned as we go along. The collapsed bridge, a trussed bridge was one of many that took existing designs for shorter spans and made them longer and stronger to suit. Then, some fatigue showed up in the connections, it hadn't happened in the shorter spans, but it was examined and found to be within acceptable standards.
There is a problem with applying the common usage of the word, "deficiency" when reading engineering inspection reports. A piece of spalled concrete that makes no difference to the strength is still listed as a deficiency.[/url]
08-07-2007, 08:03 PM
londonsquare I do think that sometimes the engineers get over ruled by cost on projects. Companys know the risk but push the limit. Will be interesting to see how it works out
08-08-2007, 10:45 AM
They are replacing a major bridge in Ottawa this weekend. It will take 15 hours. The bridge carries 150,000 on a working day.
http//metronews.ca/uploadedFiles/PDFs/20070808_ottawa.pdf
http//metronews.ca/uploadedFiles/PDFs/20070808_ottawa.pdf